Abstract:The study describes the planning strategy for a tourist itinerary in rural areas located in South-Eastern Sicily which aimed at promoting cultural rural heritage and diversifying the tourist offer. The planning of the tourist itinerary occurred within an appropriate heritage interpretation strategy as a working method which could facilitate the understanding and social use of the heritage sites located along the itinerary. The tourist itinerary combined significant territory potential such as traditional rural buildings and enogastronomy. It included a starting point; which is a heritage site and an already well known "tourist attraction", and several other tourist resources selected on the basis of the information derived from the analysis of the profile of the average visitor to the area. An interpretation center, which was located at the heritage site, and several interpretation media placed at each stopping point included in the itinerary supported the tourists during their trip. By promoting traditional rural buildings and enogastronomy, the tourist itinerary represents a significant opportunity for rural diversification and, therefore, can contribute to achieving sustainable socio-economic development of rural areas.
Most European cities are characterized by very large areas, often formed by buildings of low quality, from a series of perspectives (architectural, technological, materials, technical systems, etc.). The possibility of renovating them is strategic to improve both the quality of life and to the possibility of economic recovery for building companies. In the last decades, the attention of the scientific community has been addressed to the energy renovation, thanks to the strong activities of the European Community in this field. However, since a relevant part of the EC territory is at risk of earthquake, the possibility to combine both energy and seismic renovation actions may be strategic for many countries. In particular, Italy and Romania are linked by a common social tradition that springs from the Roman Empire. Nowadays, this link is stronger, thanks to common interests in social, cultural and business fields. Therefore, the investigation of possible synergies for seismic and energy renovation strategies may be really interesting for both countries. In this paper, after an overview of regulations and common practices for buildings with reinforced concrete structures, in both states, some key combined renovation interventions will be described and discussed, as well as advantages and perspectives of integrated renovation approaches. The outcomes of this work are to show the way to transform existing energy-consuming and seismic-prone buildings into energy-efficient and seismic-resistant ones.
More than 124 million tons of oranges are consumed in the world annually. Transformation of orange fruit generates a huge quantity of waste, largely composed of peels. Some attempts to reuse by-products derived from citrus waste have been proposed for energy production, nutrient source or pharmaceutical, food and cosmetic industries. However, their use in the building sector had not been researched. In this study, orange peels, in five different ratios, from 100% of wet peels to 75% and from 0% of dry peels to 25%, were submitted to a thermo-compression procedure. They were evaluated according to their physical (bulk density, water absorption, thickness swelling, surface soundness and thermal conductivity) and mechanical properties (bending strength and modulus of elasticity). The results showed that orange peels can be used as thermal insulation material. The addition of dried peels makes the structure of the board heterogeneous and thus increases its porosity and causes the loss of strength. Hence, the board with the sole use of wet peel, whose thermal conductivity is 0.065 W/mK while flexural strength is 0.09 MPa, is recommended.
Abstract:The strengthening of masonries is a crucial step in building restoration works because of its relevance, mostly with regard to the improvement of building seismic behavior. Current building technologies are based on the use of steel nets which are incorporated into cement plasters. The use of steel has a number of contraindications that can be solved by using composite materials such as glass fiber nets, which have high mechanical characteristics and lightness, elasticity, corrosion resistance, and compatibility with lime plaster. Building interventions, that take into account the application of glass fiber nets, are very sustainable from several points of view, e.g., material production, in situ works, economic cost and durability. In Italy, several experiments have been carried out in situ with the aim of testing the mechanical characteristics of masonries which have been treated with fiber-reinforced polymer (FRP) nets. This paper deals with a series of in situ tests carried out during the restoration works of an important historical building located in Catania (Sicily, Italy). The results achieved are largely positive.
Displacement and deformation assessment of timber roof trusses through parametric modelling. The case of San Salvatore's church in Bologna 21
The urban contexts that we live today are often the result of a stratification spontaneously followed over time, incorporating buildings in use in ancient times but abandoned as a result of the historical and cultural evolution of the city. This situation is very frequent in many historical centers, where archaeological buildings are located below the modern urban plan. An exemplary case of this situation is given by the Roman amphitheater of Catania. It was covered and used as a substructure for the new plan steal and for the buildings rebuilt after the earthquake of 1693 that destroyed the city. These reconversions of ancient structures cause several conservative problems, often difficult to understand and which must be investigated in an interdisciplinary way to understand their origins and solve them. The complexity of urban systems requires an inevitable multidisciplinary approach that combines archival analysis, historical, archaeological analysis, diagnostics, architectural, plant engineering and urban. This research aims to show, in particular, how the part of historical analysis of archival type can be a useful diagnostic survey tool to be applied in multi-layered contexts, through the example of the Roman amphitheater of Catania which today is in a precarious state of conservation and accessibility that requires intervention. This work was carried out by studying the administrative documentation of the 19th century produced by responsables for the protection of the historical buildings of Catania, kept at the State Archive of Catania, and allowed to understand the conservative events of the heritage architectures and to deepen the knowledge of the causes of the degradation that today the monument undergoes, demonstrating how such problems have a long history never radically resolved.
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